Apparatuses, methods, and systems are disclosed for transmission power control. One method includes receiving a first configuration indicating a plurality of bandwidth parts on a first serving cell and configuration information corresponding to the plurality of bandwidth parts. The configuration information comprises an open-loop power control configuration, a closed loop power control configuration, or a combination thereof corresponding to each bandwidth part of the plurality of bandwidth parts. The method comprises receiving scheduling information for a first uplink transmission on a first bandwidth part of the plurality of bandwidth parts. The method comprises determining a first transmission power for the first uplink transmission based on the configuration information and the scheduling information. The method comprises performing the first uplink transmission with the first transmission power.

Example aspects include a method, apparatus, and computer-readable medium for wireless communication at user equipment (UE) of a mobile network, comprising monitoring an uplink metric of an uplink transmission channel. The aspects further include calculating an uplink transmit power based at least on a tolerance threshold. Additionally, the aspects include transmitting, via the uplink transmission channel according to the uplink transmit power, an uplink transmission. Additionally, the aspects include detecting a change in the uplink metric. Additionally, the aspects include comparing the change in the uplink metric with performance improvement criteria. Additionally, the aspects include determining whether to adjust the uplink transmit power. Additionally, the aspects include iterating adjustments to the uplink transmit power. Additionally, the aspects include stopping the adjustments to the uplink transmit power in response to determining that the uplink metric meets a performance threshold or in response to determining that the tolerance threshold has been met.

Provided are a method and apparatus for performing vehicle-to-everything (V2X) communication in a wireless communication system, and an operation method of a first terminal in a wireless communication system includes: receiving, from a second terminal, a PC5 radio resource control (RRC) reconfiguration message including configuration information for measurement of sidelink reference signal received power (SL-RSRP); measuring the SL-RSRP, based on the configuration information for measuring the SL-RSRP; and when a reporting type regarding the measurement of the SL-RSRP is periodic reporting and a measurement value of a Layer 3 filtered SL-RSRP is present, transmitting the measurement value of the Layer 3 filtered SL-RSRP to the second terminal.

Provided are a method and apparatus for performing vehicle-to-everything (V2X) communication in a wireless communication system, and an operation method of a first terminal in a wireless communication system includes: receiving, from a second terminal, a PC5 radio resource control (RRC) reconfiguration message including configuration information for measurement of sidelink reference signal received power (SL-RSRP); measuring the SL-RSRP, based on the configuration information for measuring the SL-RSRP; and when a reporting type regarding the measurement of the SL-RSRP is periodic reporting and a measurement value of a Layer 3 filtered SL-RSRP is present, transmitting the measurement value of the Layer 3 filtered SL-RSRP to the second terminal.

Provided are a power control method, a power control apparatus, a base station, a terminal and a computer-readable storage medium. The method includes: a second communication node configuring a power control parameter for a first communication node, where the power control parameter includes at least one transmit power offset, and the transmit power offset is determined by at least one of: a payload size of physical uplink control channel (PUCCH) transmission, a number of orthogonal frequency division multiplexing (OFDM) symbols occupied by PUCCH transmission, a number of resource blocks (RBs) occupied by PUCCH transmission, or whether a PUCCH is subjected to frequency hopping.

Provided are a power control method, a power control apparatus, a base station, a terminal and a computer-readable storage medium. The method includes: a second communication node configuring a power control parameter for a first communication node, where the power control parameter includes at least one transmit power offset, and the transmit power offset is determined by at least one of: a payload size of physical uplink control channel (PUCCH) transmission, a number of orthogonal frequency division multiplexing (OFDM) symbols occupied by PUCCH transmission, a number of resource blocks (RBs) occupied by PUCCH transmission, or whether a PUCCH is subjected to frequency hopping.

Provided are a data processing method, node and terminal. The method includes: before sending data, a first node performing a perception measurement on a first channel of transmission data within a pre-determined time duration; the first node acquiring a first perception measurement result of the perception measurement; and the first node processing data according to the first perception measurement result. By means of the embodiments of the present application, the problems in the relevant art of an interference between uplink and downlink data transmissions of a neighbor cell or a present cell, and a resource collision can be solved.

This application provides a communication method, a communications apparatus, and a communications system. The method includes: receiving first indication information, where the first indication information indicates at least two first parameters, and the at least two first parameters are used for determining at least one of an uplink data channel power, an uplink control channel power, or an uplink reference signal power during dynamic scheduling; and determining a second parameter obtained when a first time element is not used to transmit at least one of an uplink data channel, an uplink control channel, or an uplink reference signal, where the second parameter is at least one of a nominal power, a path loss adjustment factor, a path loss, or a closed-loop power control adjustment value. The method is applicable to power control and/or power headroom reporting in a multi-beam system.

This application provides a communication method, a communications apparatus, and a communications system. The method includes: receiving first indication information, where the first indication information indicates at least two first parameters, and the at least two first parameters are used for determining at least one of an uplink data channel power, an uplink control channel power, or an uplink reference signal power during dynamic scheduling; and determining a second parameter obtained when a first time element is not used to transmit at least one of an uplink data channel, an uplink control channel, or an uplink reference signal, where the second parameter is at least one of a nominal power, a path loss adjustment factor, a path loss, or a closed-loop power control adjustment value. The method is applicable to power control and/or power headroom reporting in a multi-beam system.

Provided are a method by which a first device performs wireless communication, and a device for supporting same. The method can comprise the steps of: transmitting one or more reference signals (RSs) to a second device on the basis of first transmit power; receiving, from the second device, information related to a channel state measured on the basis of the one or more RSs; changing the first transmit power to second transmit power on the basis of the information related to the channel state; and transmitting the one or more RSs to the second device on the basis of the second transmit power.